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Average Salary for Salesforce JavaScript-Developer-I Exam Certified Professional
Salesforce JavaScript Developer roles are in great demand nowadays. The average salaries of Salesforce JavaScript Developer I exam Certified professional in:
- United State - 129,630 USD
- Europe - 63,500 Euro
- England - 60,200 POUND
What is the duration, language, and format of Salesforce JavaScript-Developer-I Exam
- This exam is offered in only English.
- Passing score 65%
- The type of questions is Multiple Choice and situation-based questions.
- There is a time limit of 105 minutes for the exam.
- This exam consists of 60 questions
Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
Salesforce JavaScript-Developer-I日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Objects, Functions, and Classes | 25% | - Object creation, properties, and methods - Closures and execution context - Function definitions, parameters, and scope - Modules and imports/exports - Class syntax, inheritance, and prototypes - Decorators and advanced function patterns |
| Topic 2: Asynchronous Programming | 13% | - Async/await syntax - Callbacks and callback hell - Fetch API and HTTP requests - Event loop and micro/macro tasks - Promises and chaining |
| Topic 3: Testing | 7% | - Code coverage and best practices - Unit testing concepts - Testing frameworks and assertions - Test doubles and mocks |
| Topic 4: Debugging and Error Handling | 7% | - Defensive programming practices - Error types and exception handling - Debugging tools and breakpoints - Console methods and logging |
| Topic 5: Browsers and Events | 17% | - Window and document object properties - Event handling, propagation, and delegation - Document Object Model (DOM) manipulation - Script loading and execution order - Browser APIs and Web Storage |
| Topic 6: Server-Side JavaScript | 8% | - Command-line tools and scripts - Node.js fundamentals and runtime - Module system and require/import - Core Node.js modules |
| Topic 7: Variables, Types, and Collections | 23% | - Variable declaration and initialization - Array methods and data manipulation - Truthy and falsy values - Type coercion and conversion rules - Working with strings, numbers, dates, and booleans - JSON parsing and usage |
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